Yang introduced a new evolutionary algorithm in [1]} named Firefly algorithm (FA) which is inspired by the
flashing behaviour of the fireflies. FA aims to attract other objects, namely, their mates, through their light. Yang presented this algorithm based on the following assumption: all fireflies are the same gender. It means that the possibility of attacking other mates is the same. Also the rate of attraction has a direct relation with the light; the more light, the higher the rate of attraction. Furthermore, if there are no bright fireflies, mates tend to move towards any of the fireflies randomly. Researchers developed and tailored FA to work well with steganalysis.
